A Wireshark TCP Troubleshooting Profile (Wireshark 3.4.0 and onwards)

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  • Create Date August 30, 2014
  • Last Updated November 29, -0001

A Wireshark TCP Troubleshooting Profile (Wireshark 3.4.0 and onwards)

Updated 1/9/2022 from feedback, and new features of Wireshark 3.4.0! Thanks to your comments! Enjoy!

Most network engineers and technicians are quickly discovering that with "everything over IP" we are required to understand exactly what this means.  For a lot of the standard, traditional data communications between clients and servers this means transport over TCP.  

Furthermore, it requires the ability to troubleshoot TCP.  To troubleshoot TCP you have to look at the packets.  To look at the packets, the best tool is Wireshark!

For those of you who love Wireshark and are needed to troubleshoot TCP, we would like to offer a great default profile for TCP.  A starting point. 

Consider for a moment what would be important in your network administration and troubleshooting of TCP:

  • Knowing the key components of information to tack TCP behavior
  • Being able to identify TCP packets with certain pertinent information
  • Being able to detect interesting TCP process issues

Here are the columns we have created:

2022 01 09 10 52 02

We added a ton of nested display filter buttons.  These allow you to filter and hunt for a variety of packet types, wuickly narrowing your troubleshooting process while gathering evidence along the way:

2022 01 09 10 58 04

The drop downs reveal categorized filters and if you hover on them, an explanation for each filter is revealed.

We added some related display filters:

2021 02 21 7 07 52

Coloring rules - which some color haters can simply turn off:

2021 02 21 7 09 49

View further details on this profile here.

Start using this TCP Troubleshooting profile right away and you will see, it is like the springboard for your troubleshooting and packet analysis.

What would you change?

What would you add?

Let us know.  We thank all who have contributed to this profile over the years.  Follow us on Twitter to receive notifications of updates to our profiles: @awalding and/or check us out on Github: https://github.com/amwalding/wireshark_profiles

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